When one takes the
four elements and includes with them
Aether or
Spirit, one reaches five. Five also numbers the faces of the
pyramid, when one includes the
base; it is also the number of the regular polyhedra, or
Pythagorean solids.
Five is an important number to the Discordian Movement, with its Funfwissenschaft or Law of Fives.
Meanwhile, in China, five is the number of the Taoist elements: fire, earth, metal, water, and wood.